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CVE-2026-48034— HULUMI-H5 bypass via decoy sibling resources targeting a different bucket

CVSS 8.5 · High EPSS 0.26% · P17

Possible ATT&CK Techniques 1AI

T1657 · Financial Theft

Affected Version Matrix 1

VendorProductVersion RangeStatus
kerberosmansourhulumi< 1.4.0affected
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I. Basic Information for CVE-2026-48034

Vulnerability Information
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Vulnerability Title
HULUMI-H5 bypass via decoy sibling resources targeting a different bucket
Source: CVE Program / CVE List V5
Vulnerability Description
Hulumi is an open-source toolkit that ships secure-by-default cloud and platform infrastructure components for Pulumi. Prior to version 1.4.0, there is a bypass via decoy sibling resources targeting a different bucket. This issue has been patched in version 1.4.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:L
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
kerberosmansourhulumi < 1.4.0 -

II. Public POCs for CVE-2026-48034

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III. Intelligence Information for CVE-2026-48034

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Patches & Fixes for CVE-2026-48034 (1)

Vendor Advisories for CVE-2026-48034 (1)

Same Patch Batch · kerberosmansour · 2026-07-24 · 6 CVEs total

CVE-2026-480368.4 HIGHHulumi: Drift classifier fails open on adapter errors and over-promotes Mixed verdicts
CVE-2026-480338.4 HIGHHulumi: Policy packs bypassed by a forged Pulumi-URN logical name
CVE-2026-480328.3 HIGHHulumi: IAM-role policy checks bypassed when the role trusts multiple OIDC providers
CVE-2026-480357.1 HIGHHulumi: AccountFoundation audit-delivery S3 bucket could be silently weakened
CVE-2026-480376.3 MEDIUMHulumi: AccountFoundation reuse paths silently downgrade GuardDuty / Security Hub posture

IV. Related Vulnerabilities

Same product: hulumi
Same vendor: kerberosmansour
Same weakness: CWE-284

V. Comments for CVE-2026-48034

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